Woke up to banging kettling bolier...

[ahdguy]

So....

Woke up in the early hours to the sound of loud-banging from the bolier... Checked the control panel, and there was neither demand for hot-water or heating...

So switched the boiler off and went back to bed.

Testing before I came to work, I noticed that the thermostat would fire the boiler, without the control panel switched on for heating, and due to the banging I guessed the heating valve was still shut.

- So what is the likely-hood of the heating valve microswitch being stuck permanently on, resulting in the thermostat switching the boiler on, but the valve being shut?


Thanks in advance!

 

[breadnbutter]

on S plan 2xport valve if both shut,and microswitch stuck yes ,it will bang the boiler. usually draytons stick often

 

[ahdguy]

on S plan 2xport valve if both shut,and microswitch stuck yes ,it will bang the boiler. usually draytons stick often

Thanks - I'll get some replacements ordered and see what happens.. In the mean time I've taken the actuator off and left valve open